Intraspecific unilateral incompatibility in Vicia faba L.
- 1 January 1977
- journal article
- Published by Springer Nature in Theoretical and Applied Genetics
- Vol. 50 (5) , 227-233
- https://doi.org/10.1007/bf00273756
Abstract
Unilateral incompatibility was discovered when crossing was attempted between different self-compatible types and subspecies of V. faba. Crossing in the direction female less self-fertile x male more self-fertile failed, whereas the reciprocal-crossing succeeded. Unilateral incompatibility developed with the evolution of less fertile and large seeded field bean types. How a cross fertilized (and self-incompatible) system may develop from a self fertilized one is discussed. The unilateral incompatibility in V. faba and other plant species is compared. The two-power competition hypothesis can explain all kinds of unilateral incompatibility reported so far in the literature. Breeding field beans for improved self-fertility is discussed.Keywords
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